[PATCH] Generic ioremap_page_range: parisc conversion

Convert parisc to use generic ioremap_page_range()

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Acked-by: Kyle McMartin <kyle@parisc-linux.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 7 insertions, 104 deletions

diff --git a/arch/parisc/mm/ioremap.c b/arch/parisc/mm/ioremap.c
index 47a1d2ac9419..44b42c7f639d 100644
--- a/arch/parisc/mm/ioremap.c
+++ b/arch/parisc/mm/ioremap.c
@@ -9,110 +9,8 @@
 #include <linux/vmalloc.h>
 #include <linux/errno.h>
 #include <linux/module.h>
-#include <asm/io.h>
+#include <linux/io.h>
 #include <asm/pgalloc.h>
-#include <asm/tlbflush.h>
-#include <asm/cacheflush.h>
-
-static inline void 
-remap_area_pte(pte_t *pte, unsigned long address, unsigned long size,
-               unsigned long phys_addr, unsigned long flags)
-{
-        unsigned long end, pfn;
-        pgprot_t pgprot = __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY |
-                                   _PAGE_ACCESSED | flags);
-
-        address &= ~PMD_MASK;
-
-        end = address + size;
-        if (end > PMD_SIZE)
-                end = PMD_SIZE;
-
-        BUG_ON(address >= end);
-
-        pfn = phys_addr >> PAGE_SHIFT;
-        do {
-                BUG_ON(!pte_none(*pte));
-
-                set_pte(pte, pfn_pte(pfn, pgprot));
-
-                address += PAGE_SIZE;
-                pfn++;
-                pte++;
-        } while (address && (address < end));
-}
-
-static inline int 
-remap_area_pmd(pmd_t *pmd, unsigned long address, unsigned long size,
-               unsigned long phys_addr, unsigned long flags)
-{
-        unsigned long end;
-
-        address &= ~PGDIR_MASK;
-
-        end = address + size;
-        if (end > PGDIR_SIZE)
-                end = PGDIR_SIZE;
-
-        BUG_ON(address >= end);
-
-        phys_addr -= address;
-        do {
-                pte_t *pte = pte_alloc_kernel(pmd, address);
-                if (!pte)
-                        return -ENOMEM;
-
-                remap_area_pte(pte, address, end - address, 
-                               address + phys_addr, flags);
-
-                address = (address + PMD_SIZE) & PMD_MASK;
-                pmd++;
-        } while (address && (address < end));
-
-        return 0;
-}
-
-static int 
-remap_area_pages(unsigned long address, unsigned long phys_addr,
-                 unsigned long size, unsigned long flags)
-{
-        pgd_t *dir;
-        int error = 0;
-        unsigned long end = address + size;
-
-        BUG_ON(address >= end);
-
-        phys_addr -= address;
-        dir = pgd_offset_k(address);
-
-        flush_cache_all();
-
-        do {
-                pud_t *pud;
-                pmd_t *pmd;
-
-                error = -ENOMEM;
-                pud = pud_alloc(&init_mm, dir, address);
-                if (!pud)
-                        break;
-
-                pmd = pmd_alloc(&init_mm, pud, address);
-                if (!pmd)
-                        break;
-
-                if (remap_area_pmd(pmd, address, end - address,
-                                   phys_addr + address, flags))
-                        break;
-
-                error = 0;
-                address = (address + PGDIR_SIZE) & PGDIR_MASK;
-                dir++;
-        } while (address && (address < end));
-
-        flush_tlb_all();
-
-        return error;
-}
 
 /*
  * Generic mapping function (not visible outside):
@@ -131,6 +29,7 @@ void __iomem * __ioremap(unsigned long phys_addr, unsigned long size, unsigned l
         void *addr;
         struct vm_struct *area;
         unsigned long offset, last_addr;
+        pgprot_t pgprot;
 
 #ifdef CONFIG_EISA
         unsigned long end = phys_addr + size - 1;
@@ -164,6 +63,9 @@ void __iomem * __ioremap(unsigned long phys_addr, unsigned long size, unsigned l
                 }
         }
 
+        pgprot = __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY |
+                          _PAGE_ACCESSED | flags);
+
         /*
          * Mappings have to be page-aligned
          */
@@ -179,7 +81,8 @@ void __iomem * __ioremap(unsigned long phys_addr, unsigned long size, unsigned l
                 return NULL;
 
         addr = area->addr;
-        if (remap_area_pages((unsigned long) addr, phys_addr, size, flags)) {
+        if (ioremap_page_range((unsigned long)addr, (unsigned long)addr + size,
+                               phys_addr, pgprot)) {
                 vfree(addr);
                 return NULL;
         }